Screen vibration feedback structure, touch screen device and vibration effect optimization method

Abstract

This invention discloses a screen vibration feedback structure, a touch screen device, and a vibration effect optimization method. The screen vibration feedback structure includes: a moving part assembly, including a connecting seat, a vibrating element, and a mounting seat for mounting the touch screen body; a bottom shell, located on the side of the connecting seat away from the mounting seat, with a limiting block on the lower side of the connecting seat; and multiple damping mechanisms, located between the bottom shell and the connecting seat. Each damping mechanism includes an elastic element and a first boss, with the elastic element connected between the bottom of the first boss and the bottom shell, such that the height of the elastic element is lower than that of the limiting block. By setting the first boss and the limiting block, space is provided for the elastic element. Adjusting the shape and structure of the elastic element has minimal impact on the overall height of the screen vibration feedback structure, meeting the needs of interior design. This allows for easy adjustment of the elastic element when the vibration feedback structure needs to be adjusted to optimize the vibration effect.

Description

Technical Field

[0001] This invention relates to the field of vehicle parts technology, and in particular to a screen vibration feedback structure, a touch screen device, a vehicle, and a method for optimizing vibration effects. Background Technology

[0002] Some vehicles require touchscreens with vibration feedback structures, and correspondingly, the vehicles have fittings for mounting these structures. During actual assembly and use, screen vibration feedback may generate noise, resonance, or other abnormal sounds, resulting in poor vibration performance and affecting the user's touch operation experience. Therefore, the vibration feedback structure needs to be adjusted during the design phase. However, due to considerations in vehicle interior design, the space for adjusting the shape of the screen vibration feedback structure is limited, making it difficult to adjust the structure to optimize the vibration effect. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a screen vibration feedback structure, a touch screen device, a vehicle, and a method for optimizing vibration effects.

[0004] According to a first aspect of the present invention, a screen vibration feedback structure includes:

[0005] The moving part assembly includes a connecting seat, a vibrating element, and a mounting seat for mounting the touch screen body, wherein the connecting seat, the vibrating element, and the mounting seat are fixedly arranged relative to each other;

[0006] The bottom shell has a mounting portion for connecting to a mating part of a vehicle. The bottom shell is located on the side of the connecting seat away from the mounting seat, with the orientation of the connecting seat relative to the bottom shell being the upper position. The bottom shell has a limiting block located on the lower side of the connecting seat.

[0007] Multiple vibration damping mechanisms are disposed between the bottom shell and the connecting seat. Each vibration damping mechanism includes an elastic element and a first boss protruding downward from the bottom of the connecting seat. The bottom of the first boss is lower than the limiting block. The elastic element is connected between the bottom of the first boss and the bottom shell, such that the height of the elastic element is lower than the limiting block.

[0008] According to the first aspect of the present invention, the screen vibration feedback structure has at least the following technical effects: In use, the vibrating element can cause the touch screen body to vibrate, thereby achieving the purpose of vibration feedback; by setting the connecting seat, the bottom shell, and multiple damping mechanisms, the vibration transmitted to the mating parts is reduced, thereby reducing the impact of the vibration of the touch screen body on the passenger's riding comfort; by setting the first protrusion and the limiting block, space is left for setting the elastic element, and adjusting the shape and structure of the elastic element has little impact on the overall height dimension of the screen vibration feedback structure, which meets the needs of interior design, and allows the elastic element to be adjusted when the vibration feedback structure needs to be adjusted to optimize the vibration effect, thereby facilitating adjustment.

[0009] According to some embodiments of the present invention, both the first boss and the bottom shell are detachably connected to the elastic element.

[0010] According to some embodiments of the present invention, the connecting seat is provided with a receiving groove, and the mounting seat is disposed in the receiving groove such that the groove wall of the receiving groove surrounds the mounting seat.

[0011] According to some embodiments of the present invention, the bottom wall of the receiving groove is provided with a first through hole, the vibrating element is disposed in the first through hole, and the vibrating element is connected to the mounting base.

[0012] According to a second aspect of the present invention, a touchscreen device includes a touchscreen body and the screen vibration feedback structure described above, wherein the touchscreen body is connected to the mounting base. The touchscreen device can implement any embodiment of the screen vibration feedback structure described above and achieve the same beneficial effects, which will not be elaborated further here.

[0013] A vehicle according to a third aspect embodiment of the present invention includes the touchscreen device described above. The vehicle can implement any embodiment of the touchscreen device or screen vibration feedback structure described above and achieve the same beneficial effects, which will not be elaborated further here.

[0014] According to a fourth aspect of the present invention, a vibration effect optimization method is applied to the above-described touchscreen device. The vibration effect optimization method includes a structural optimization step, the structural optimization step including:

[0015] A simulation model of the assembly of the touch screen device and the mating parts is established, and modal analysis is performed on the simulation model to obtain the modal analysis results;

[0016] The elastic modulus of the elastic component in the simulation model is adjusted based on the modal analysis results to optimize the simulation model.

[0017] The vibration effect optimization method according to a fourth aspect embodiment of the present invention has at least the following technical advantages: when optimizing the vibration effect, the touch screen device and mating parts are considered as a whole after assembly, so that the vibration effect optimization result is more reliable. By adjusting the elastic element to optimize the simulation model, the overall height dimension of the simulation model is less affected during optimization, avoiding impact on the interior design of the automobile and achieving the purpose of facilitating adjustment.

[0018] According to some embodiments of the present invention, the structural optimization step further includes:

[0019] The number and position of each vibration damping mechanism are adjusted based on the modal analysis results to optimize the simulation model.

[0020] According to some embodiments of the present invention, the vibration effect optimization method further includes a parameter optimization step, the parameter optimization step including:

[0021] Based on the optimized simulation model, a physical prototype was fabricated.

[0022] The vibrating component of the physical sample is controlled to undergo multiple vibration tests with various preset vibration waveforms, and the optimal vibration waveform is determined based on the results of the multiple vibration tests.

[0023] According to some embodiments of the present invention, the vibration effect optimization method further includes:

[0024] The vibrating component of the physical sample is controlled to vibrate with the optimal vibration waveform, and NVH testing is performed to obtain NVH test results;

[0025] Determine whether the touchscreen device has achieved its design goals based on the NVH test results.

[0026] If the touch screen device fails to meet the design goals, repeat the structural optimization steps and the parameter optimization steps.

[0027] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0029] Figure 1 This is an exploded view of a touchscreen device according to an embodiment of the present invention;

[0030] Figure 2 This is a stepped cross-sectional view of a touch screen device according to an embodiment of the present invention;

[0031] Figure 3 This is a flowchart of a vibration effect optimization method according to an embodiment of the present invention;

[0032] Figure 4 This is a flowchart of the structural optimization steps in one embodiment of the present invention;

[0033] Figure 5 This is a flowchart of the parameter optimization steps in one embodiment of the present invention.

[0034] In the attached image:

[0035] 100 - Touchscreen body; 200 - First double-sided tape; 300 - Mounting base; 400 - Vibrating element; 500 - Second double-sided tape; 600 - Connecting base; 610 - First through hole; 700 - Circuit board; 810 - First boss; 820 - Elastic element; 830 - Second boss; 840 - Limiting block; 900 - Bottom shell. Detailed Implementation

[0036] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the invention and for simplifying the description, and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number, while "above," "below," "within," etc., are understood to include the stated number. If "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0038] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0039] The following is for reference. Figures 1 to 5 This invention describes a screen vibration feedback structure, a touch screen device, a vehicle, and a vibration effect optimization method according to embodiments of the present invention.

[0040] Reference Figure 1 As shown, the screen vibration feedback structure of the first aspect embodiment of the present invention includes a moving part assembly, a bottom shell 900, and a plurality of vibration damping mechanisms;

[0041] The moving part assembly includes a connector 600, a vibrating element 400, and a mounting base 300 for mounting the touch screen body 100. The connector 600, the vibrating element 400, and the mounting base 300 are connected as a whole.

[0042] The bottom shell 900 is located on the lower side of the connecting seat 600. The bottom shell 900 is provided with a limiting block 840. The limiting block 840 is located on the lower side of the connecting seat 600. The bottom shell 900 is provided with a mounting part for connecting to the mating parts of the vehicle.

[0043] Multiple vibration damping mechanisms are located between the bottom shell 900 and the connecting seat 600. The vibration damping mechanism includes an elastic element 820 and a first boss 810 protruding downward from the bottom of the connecting seat 600. The bottom of the first boss 810 is lower than the limiting block 840. The elastic element 820 is connected between the bottom of the first boss 810 and the bottom shell 900, so that the height of the elastic element 820 is lower than the limiting block 840.

[0044] Understandably, as consumers' demands for automotive comfort and entertainment continue to rise, improving the riding experience for rear passengers has become a key consideration in automotive design and manufacturing. In conventional cars, rear passengers can select TV programs or movies by installing touchscreens on the back of the front seats. However, some high-end models also feature massage chairs and independent air conditioning for rear passengers. If the massage chairs are controlled via touchscreens fixed to the back of the front seats, passengers would need to lean forward from a reclining position, which is somewhat inconvenient. Therefore, there is a demand for touchscreen devices that can be installed on the armrests and face upwards, which also places stricter requirements on the size and shape of these touchscreen devices.

[0045] like Figure 1 As shown, in this embodiment, the touch screen body 100, mounting base 300, connecting base 600, and bottom shell 900 are arranged sequentially from top to bottom. The touch screen body 100 is a liquid crystal touch screen, and the mounting base 300 is a backlight module. Of course, in some other embodiments of the present invention, the touch screen body 100 may also be an OLED touch screen, that is, a display screen that combines organic light-emitting diode (OLED) display technology and touch screen technology, and the mounting base 300 may be a plastic bracket.

[0046] In some embodiments of the present invention, the mounting base 300 is rectangular disc-shaped, with a downwardly recessed groove at the top. The touchscreen body 100 is disposed within the groove of the mounting base 300, such that the edge of the mounting base 300 surrounds the touchscreen body 100, thus protecting the touchscreen body 100. The touchscreen body 100 and the mounting base 300 can be bonded and fixed together by a first double-sided adhesive tape 200. Of course, besides being rectangular disc-shaped, the mounting base 300 can also be plate-shaped, with the touchscreen body 100 stacked on top of the mounting base 300, whereby the mounting base 300 can support and fix the touchscreen body 100.

[0047] Reference Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the connector 600 is provided with a receiving groove, and the mounting base 300 is disposed within the receiving groove. That is, the connector 600 is rectangular disc-shaped, and the top of the connector 600 is provided with a downwardly recessed receiving groove. The mounting base 300 is disposed within the receiving groove of the connector 600, such that the groove wall of the receiving groove surrounds the mounting base 300. The connector 600 can protect the mounting base 300, especially when the mounting base 300 is a backlight module, the protective function of the connector 600 for the mounting base 300 is crucial. The mounting base 300 and the connector 600 can be bonded and fixed together by a second double-sided adhesive tape 500. Of course, in addition to being rectangular disc-shaped, the connector 600 can also be plate-shaped, with the mounting base 300 stacked on top of the connector 600, and the connector 600 can support and fix the mounting base 300.

[0048] Reference Figure 2 As shown, the vibrating element 400 is a linear motor. In some embodiments of the present invention, the vibrating element 400 is connected to the mounting base 300, that is, the bottom wall of the receiving groove is provided with a first through hole 610, the vibrating element 400 is disposed in the first through hole 610, and the vibrating element 400 is connected to the mounting base 300. In this way, the vibration generated by the vibrating element 400 is directly transmitted to the mounting base 300, without the need for the intermediate loss through the connecting base 600; moreover, the vibration transmission path is vibrating element 400, mounting base 300, connecting base 600. The second double-sided tape 500 between the mounting base 300 and the connecting base 600 also serves a vibration damping function, especially when double-sided foam tape is used, the vibration damping effect is more obvious. Furthermore, since the vibrating element 400 is located within the first through hole 610, the vertical position of the vibrating element 400 coincides with the vertical position of the connecting base 600, making full use of space and helping to reduce the vertical dimension of the screen vibration feedback structure. The vibrating element 400 and the mounting base 300 can be connected by bolts. Of course, the vibrating element 400 can also be connected to the connecting base 600 in addition to the mounting base 300, as long as the vibrating element 400 can drive the actuator assembly to vibrate.

[0049] Understandably, since the mating component is installed on the vehicle's armrest, vibrations from the touchscreen body 100 transmitted to the mating component can cause the armrest and seat to vibrate accordingly, reducing passenger comfort. Therefore, this embodiment includes a base shell 900 and multiple vibration damping mechanisms. The base shell 900 is connected to the mating component, and the vibration damping mechanisms are connected between the base shell 900 and the connecting seat 600 to reduce vibrations transmitted from the touchscreen body 100 to the mating component. Furthermore, due to the multiple vibration damping mechanisms, the connection between the connecting seat 600 and the base shell 900 is flexible, and the base shell 900 imposes less restriction on the moving parts, making the vibrations of the touchscreen body 100 more noticeable. The mounting portion of the mating component and the base shell 900 can be connected by bolts.

[0050] Reference Figure 2 Each vibration damping mechanism includes a first boss 810, a second boss 830, and an elastic element 820. The first boss 810 can be integrally formed with the connecting seat 600, and the second boss 830 can be integrally formed with the bottom shell 900. The elastic element 820 can be a spring sheet, which is strip-shaped and has a first segment, a second segment, and a third segment. The second segment connects the first segment and the third segment and is vertically arranged. The first segment connects to the bottom end of the second segment and is connected to the bottom of the first boss 810. The third segment connects to the top end of the second segment and is connected to the top of the second boss 830. This design achieves vibration damping while occupying less space. The limiting block 840 is integrally formed with the bottom shell 900. The height of the limiting block 840 is higher than the height of the second boss 830, so that the spring sheet is located below the limiting block 840.

[0051] In use, the vibrating element 400 causes the touchscreen body 100 to vibrate, achieving the purpose of vibration feedback. By setting the connecting seat 600, the bottom shell 900, and multiple vibration damping mechanisms, the vibration transmitted to the mating parts is reduced, thus reducing the impact of the vibration of the touchscreen body 100 on the passenger's riding comfort. By setting the first protrusion 810 and the limiting block 840, space is left for the elastic element 820. Adjusting the shape and structure of the elastic element 820 has little impact on the overall height and dimensions of the screen vibration feedback structure, which meets the needs of interior design. When it is necessary to adjust the vibration feedback structure to optimize the vibration effect, the elastic element 820 can be adjusted, making it easy to make adjustments.

[0052] Furthermore, it is understandable that the inclusion of the elastic element 820 reduces the stiffness of the moving part assembly. If the elastic modulus of the elastic element 820 is too small, the touchscreen will float unstably when the passenger operates it, making it difficult to operate. If the elastic modulus of the elastic element 820 is too large, the vibration damping effect will be poor. In this embodiment, by setting the limiting block 840, when the passenger operates the touchscreen body 100, the passenger's finger abuts against the touchscreen body 100 from top to bottom, and the moving part assembly will be subjected to a force from top to bottom, causing the connecting seat 600 to contact the limiting block 840. That is, the limiting block 840 can support the moving part assembly, allowing the use of the elastic element 820 with a smaller elastic modulus to achieve a better vibration damping effect while avoiding the problem of the moving part assembly having too low stiffness, which would make it difficult to operate the touchscreen.

[0053] In some embodiments of the present invention, the vibration damping mechanism further includes a third boss, and the spring sheet also has a fourth segment and a fifth segment. The third boss is mirror-symmetrical to the second boss 830, the fourth segment is mirror-symmetrical to the second segment, and the fifth segment is mirror-symmetrical to the third segment, so that the structure of the elastic element 820 is more stable.

[0054] In some embodiments of the present invention, both the first boss 810 and the bottom shell 900 are detachably connected to the elastic element 820. This facilitates the disassembly and replacement of the elastic element 820. When the elastic element 820 is a spring sheet, the first segment is connected to the first boss 810 by bolts, and the third segment is connected to the second boss 830 by bolts. The bottom shell 900 is provided with mounting through holes for each spring sheet. The mounting through holes are located below the first boss 810. The bolt connecting the first segment and the first boss 810 is called the first bolt. The first bolt is vertically arranged and passes through the first segment from bottom to top before being threaded into the first boss 810, so that a screwdriver can be inserted into the mounting through hole to disassemble and install the first bolt. After removing all the first bolts, the connecting seat 600 can be separated from the bottom shell 900, and then the second boss 830 and the spring sheet can be disassembled to facilitate the replacement of the spring sheet. Among them, the connecting seat 600 and the bottom shell 900 of the screen vibration feedback structure are relatively complex components that require mold forming. Even if a small number are manufactured for experiments, a lot of manpower and resources are required. On the other hand, the spring can be made by metal sheet metal processing. When manufacturing a small number, a lot of manpower and resources are not required, and it is convenient to make multiple adjustments and conduct experiments.

[0055] In some embodiments of the present invention, the mover assembly further includes a circuit board 700, which is electrically connected to the vibrating element 400. A first space and a second space located on the outer periphery of the first space are provided between the base shell 900 and the connecting seat 600. The circuit board 700 is located in the first space, and multiple vibration damping mechanisms are located in the second space. The circuit board 700 can be bolted to the connecting seat 600. This allows the number and position of the vibration damping mechanisms to be adjusted within the second space without affecting the external dimensions of the screen vibration feedback structure. This facilitates adjustment of the number and position of the vibration damping mechanisms when the vibration feedback structure needs to be adjusted to optimize the vibration effect.

[0056] A touchscreen device according to a second aspect of the present invention includes a touchscreen body 100 and the screen vibration feedback structure described above, wherein the touchscreen body 100 is connected to a mounting base 300. The touchscreen device can implement any embodiment of the screen vibration feedback structure described above and achieve the same beneficial effects, which will not be elaborated further here.

[0057] A vehicle according to a third aspect embodiment of the present invention includes the touchscreen device described above. The vehicle can implement any embodiment of the touchscreen device or screen vibration feedback structure described above and achieve the same beneficial effects, which will not be elaborated further here.

[0058] The vibration effect optimization method according to the fourth aspect of the present invention is applied to the above-described touch screen device, with reference to... Figure 4 The vibration effect optimization method includes a structural optimization step S100, which includes:

[0059] Step S110: Establish a simulation model of the touch screen device and mating parts assembly, perform modal analysis on the simulation model, and obtain the modal analysis results;

[0060] Step S120: Adjust the elastic modulus of the elastic component in the simulation model according to the modal analysis results to optimize the simulation model.

[0061] In step S110, a simulation model of the touchscreen device and its mating components is established, including completing the structural data design of the touchscreen device and the mating components, and confirming information such as the material of the mating components. In vibration engineering, modal analysis technology is widely used. Through modal analysis, the characteristics of each major mode of a structure within a certain susceptible frequency range can be clarified, thereby predicting the actual vibration response of the structure under various external or internal vibration sources within this frequency band. This allows for the study and analysis of the structure's dynamic characteristics, evaluation of its vibration performance, and further guidance for structural design and optimization.

[0062] In step S120, when the elastic element is a spring sheet, the step of adjusting the elastic modulus of the elastic element in the simulation model according to the modal analysis results can be to adjust the material, thickness or width of the spring sheet, and make the top of the spring sheet not higher than the top of the limiting block.

[0063] It is important to note that the noise and vibration feedback generated by the screen are related not only to the structure of the touchscreen device but also to the structure of the mating components. Therefore, in this embodiment, when optimizing the vibration effect, the touchscreen device and mating components are considered as a whole after assembly to make the vibration effect optimization results more reliable. By adjusting the elastic component to optimize the simulation model, the overall height dimension of the simulation model is minimally affected during optimization, avoiding any impact on the interior design of the car and facilitating adjustments.

[0064] In some embodiments of the present invention, the structural optimization step S100 further includes:

[0065] Step S130: Adjust the number and position of each vibration damping mechanism according to the modal analysis results to optimize the simulation model. Since the vibration damping mechanisms are located in the second space, their number and position can be adjusted within this space without affecting the external dimensions of the touchscreen device, thus facilitating adjustment.

[0066] In addition, in some other embodiments of the present invention, the structural optimization step S100 further includes: adjusting the structure of the connecting seat, the bottom shell or the mating parts according to the modal analysis results, so as to optimize the simulation model.

[0067] It is understood that vibration frequency and vibration intensity have a significant impact on vibration-induced noise and vibration transmission problems. Therefore, in some embodiments of the present invention, reference is made to... Figure 5 The vibration effect optimization method also includes a parameter optimization step S200, which includes:

[0068] Step S210: Create a physical prototype based on the optimized simulation model;

[0069] Step S220: Control the vibrating component of the solid sample to perform multiple vibration tests with various preset vibration waveforms, and compare the results of multiple vibration tests to determine the optimal vibration waveform.

[0070] By creating physical prototypes for testing, the optimal vibration waveform is selected to optimize the vibration effect; the vibration waveform can be used to determine vibration parameters such as vibration frequency and vibration intensity.

[0071] In step S220, the vibration component of the physical sample is controlled to undergo multiple vibration tests with various preset vibration waveforms. This includes developing vibration parameter adjustment software, which has several typical waveform selection soft switches and vibration duration, intensity and frequency adjustment soft switches to facilitate changing the vibration waveform.

[0072] In step S220, the results of multiple vibration tests are compared to determine the optimal vibration waveform, including: determining the optimal vibration waveform based on the vibration feedback requirements of the test personnel touching the screen body, or selecting the vibration waveform with the least noise as the optimal vibration waveform based on the noise caused by the vibration.

[0073] Reference Figure 3 In some embodiments of the present invention, the vibration effect optimization method further includes:

[0074] Step S310: Control the vibrating component of the solid sample to vibrate with the optimal vibration waveform, and perform NVH test to obtain NVH test results;

[0075] Step S320: Determine whether the touch screen device has met the design objectives based on the NVH test results;

[0076] Step S330: If the touch screen device fails to meet the design target, repeat the structural optimization step S100 and the parameter optimization step S200.

[0077] Step S340: When the touch screen device reaches the design goal, determine the vibration parameters based on the optimal waveform to complete the vibration effect optimization.

[0078] NVH testing primarily focuses on noise, vibration, and harshness issues in automobiles. The purpose of NVH testing is to reduce vehicle vibration and noise levels, improve the in-vehicle acoustic environment, and enhance vehicle comfort. After optimizing vibration effects, the vibration feedback is customized for different scenarios, such as providing different responses to screen taps, swipes, and long presses; for example, during swipes, the vibration effect gradually increases with the value, and the vibration effect is then finally calibrated.

[0079] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A screen vibration feedback structure, characterized in that, include: The moving part assembly includes a connecting base, a vibrating element, and a mounting base for mounting a touch screen body, wherein the mounting base is connected to the connecting base, and the vibrating element is connected to the connecting base or the mounting base; The bottom shell has a mounting portion for connecting to a mating part of a vehicle. The bottom shell is located on the side of the connecting seat away from the mounting seat, with the orientation of the connecting seat relative to the bottom shell being the upper position. The bottom shell has a limiting block located on the lower side of the connecting seat. Multiple vibration damping mechanisms are disposed between the bottom shell and the connecting seat. Each vibration damping mechanism includes an elastic element and a first boss protruding downward from the bottom of the connecting seat. The bottom of the first boss is lower than the limiting block. The elastic element is connected between the bottom of the first boss and the bottom shell, such that the height of the elastic element is lower than the limiting block. The vibration damping mechanism also includes a second boss. The first boss and the connecting seat are integral components, and the second boss and the bottom shell are integral components. The elastic element is a spring sheet, which is strip-shaped and has a first section, a second section and a third section. The second section is connected between the first section and the third section. The second section is vertically arranged. The first section is connected to the bottom end of the second section and is connected to the bottom of the first boss. The third section is connected to the top end of the second section and is connected to the top of the second boss. The connecting seat is provided with a receiving groove, and the mounting seat is disposed in the receiving groove such that the groove wall of the receiving groove surrounds the mounting seat; The bottom wall of the receiving groove is provided with a first through hole, the vibrating element is disposed in the first through hole, and the vibrating element is connected to the mounting base.

2. The screen vibration feedback structure according to claim 1, characterized in that: Both the first boss and the bottom shell are detachably connected to the elastic element.

3. A touchscreen device, characterized in that: It includes a touch screen body and a screen vibration feedback structure as described in claim 1 or 2, wherein the touch screen body is connected to the mounting base.

4. A vehicle, characterized in that: Includes the touchscreen device as described in claim 3.

5. A method for optimizing vibration effects, characterized in that: Applied to the touchscreen device as described in claim 3, the vibration effect optimization method includes a structural optimization step, the structural optimization step including: A simulation model of the assembly of the touch screen device and the mating parts is established, and modal analysis is performed on the simulation model to obtain the modal analysis results; The elastic modulus of the elastic component in the simulation model is adjusted based on the modal analysis results to optimize the simulation model.

6. The vibration effect optimization method according to claim 5, characterized in that: The structural optimization step also includes: The number and position of each vibration damping mechanism are adjusted based on the modal analysis results to optimize the simulation model.

7. The vibration effect optimization method according to claim 5, characterized in that: The vibration effect optimization method further includes a parameter optimization step, which includes: Based on the optimized simulation model, a physical prototype was fabricated. The vibrating component of the physical sample is controlled to undergo multiple vibration tests with various preset vibration waveforms, and the optimal vibration waveform is determined based on the results of the multiple vibration tests.

8. The vibration effect optimization method according to claim 7, characterized in that: The vibration effect optimization method also includes: The vibrating component of the physical sample is controlled to vibrate with the optimal vibration waveform, and NVH testing is performed to obtain NVH test results; Determine whether the touchscreen device has achieved its design goals based on the NVH test results. If the touch screen device fails to meet the design goals, repeat the structural optimization steps and the parameter optimization steps.

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